Rosette for forming crossed joints for metal bars.



No. 690,598. "Patented Jan. 7, I902.

M. MENDEL.

ROSETTE FOR FORMING GROSSED JOINTS FOR METAL BARS. (Appli ciation meg July 26; 1901.;

(No Model.) 3 Sheets-Sheet I.

M 5J4 oce l U/lende? m: NORRIS PEI'ER5 co, morau'ruo wasumumu, n. c.

N6. 690,598. Patented lan."7, 1902. m. MENDEL.

ROSETTE FOR FORMING CB'OSSED JOINTS FOR METAL BARS.

(Applicaiiion filed July 26, 1901.; (No Model.) 3 SheetsSheet 2.

THE mums PEYERS co. mmo-umo. wuumnrcm u. c

No. 690,598. Patented Jan. 7, I902. M. MENDEL.

RUSETTE FOR FORMING. CROSSED JOINTS FOR METAL BARS.

(Application filed July 26, 1901.,

' 3 Sheets-S,haet 3.

UNITED STATES PATENT OFFICE. f

MORITZ MENDEL, OF ST. J OHANN, GERMANY.

ROSETTE FOR FORMING CROSSED JOINTS FQR M'ETAL BARs.;

SPECIFICATION forming part of Letters Patent No. 690,598, dated J anuary 7, 1902.

Application filed July 26, 1901. Serial No. 69,774. (No model.) i

To all whom it may concern.-

Be it known that I, MORITZ MENDEL, asubject of the German Emperor, and a resident of St. Johann, Germany, have invented certain new and useful Improvements in R0- settes for Forming Crossed Joints for Metal Bars, of which the following is a specification.

This invention relates to rosettes for crossed joints, and a special advantage obtained by it is that owing to the metal bars being crossed one over the other only a single rosette is needed,which does not necessitate an exactly rectangular crossing, the coupling or the fastening together of the bars being performed even when the said bars cross each other at an acute angle or when they are simply j uxta posed, as in the joining of wroughtdron work to the bars of iron lattices. These rosettes can be made to correspond in form and pattern with the lattice-work or grating.

, In the accompanying drawings,- Figure 1 is a front view of the rosette. Fig. 2 is a ver tical section thereof. Fig. 3 shows the rosette as placed when effecting the connection. Fig.

2 5 4 is arear view of Fig. 3. Figs. 5 to 7 show the application of the rosette to juxtaposed parts. Figs. 8 and 9 show another form of construction of the rosette.

Thisinvention consists,principally,in using for the assembling of crossed metal bars 8 a single rosette a, provided with claws b, which are bent over the bars. The rosettes should be placed at the crossing-points of the bars 8 in such a manner as to form a contact with 5 them on the four sides, thus allowing a solid connection to be made, by simply bending.

over the claws 5, Figs. 3 and 4.

In. the form of construction shown in Figs.

1, 2, 3, 4, 5, 6, and 7 the fingers b are stamped 40 from the body of the rosette, the form being of a triangle, which eifects a form of rosette pleasing in appearance as well as providing fingers which securely hold the several parts and are easily bent into position.

- rosette is likewise concaved to receive the bowed portion of the bar, so the body portion of the rosette is in engagement with the bars.

-. In the con-" 5 struction wherein the parts to be united cross When rosettes having claws b which can be bent over are used for juxtaposed bars 8,

only two claws b, facing each other, are used, the other claws being dispensed with. In

this way the outer shape of the rosettes isunchanged and their appearance is not af fected by the difierent manner. of using the rosette.

Rosettes that are "not stamped may also be the corresponding point in such a way that the bend of the bar can be lodged in the said recess.

On the other hand, if the bars are simply placed one above the other all that is necessary is to bend the rosettes'a' in order that their edges may bear against the two bars;

As seen in Figs. 8 and 9, the claws to be bent over can be arranged on the sides or outer edges of the rosettes so as to be able to avoid stamping. c Having fully described my'inventio'n, what Iclaim, and desire to secure by Letters Patent, is'

1. In a joint for bars, the combination of a I star-shaped rosette having cut-away portions in the points thereof forming claws, a semispherical central portion, bars forming a joint 7 inclosed on one side by said claws-and on the other side by said semispherical portion, substantially as described. Y Y I 2. In a joint for bars, the combination of a;

star-shaped rosette having cut-away portions in the points thereof forming inwardly-ex tending claws, clamps formed between the points of said star-shaped rosette extending outwardly therefrom, cross-bars, engaged by said lastnamed clamps, a central semivspherical portion inclosing one side of the intersection of said cross-bars and said inwardly-extending clamps inclosing the other side of the joint, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two witnesses. I

MO RITIZ' MENDEL. Witnesses: I I

WALTER Hiilvsme, HEINRICH ILBERT. c 

